When you start the level, get the Cloak power-up located in a little storage bay along the way. The enemy will not shoot at you while you are cloaked. Make your way to the enemy base. Along the way you will see cement stakes in the sidewalk. Walk up to the stakes and take a right. Notice the little passageway with stairs. Take it -- this will prevent you from having to go through a group of opponents going the normal way. This passageway contains a weapon and a Damage Amplifier power-up (red orb). By using this shortcut you can get Gold easily. If the cops start shooting you, either use plasma grenades or just keep running. Remember to pick up the Cloak when you can, or the cops will be all over you. Use that passageway to your advantage. It is a great shortcut to the enemy's bag. Once you go down the stairs that the passageway leads to, their bag is right outside. Take the bag and take off back up the passageway to get Gold easily.